某工程PHC管桩偏位原因分析及处理方案

ANALYSIS ON CAUSE OF DEVIATION OF PHC PIPE PILE AND ITS TREATMENT PROGRAM IN A PROJECT

某工程在土方开挖时发现 PHC 管桩大量偏位、倾斜,通过低应变检测发现有大量Ⅲ为桩。针对此桩基质量事故原因进行分析,给出了桩基加固补强的处理方案。

Deviation and lean of PHC pipe pile in a project was found when foundation pit was excavated, many Category Ⅲ piles were found by low strain dynamic testing of piles. The cause of deviation and lean of PHC pipe pile was analyzed, and a treatment program on strengthen of pile foundation was given in this paper.